Apparatus for making barrel-bodies from pulp.



I WJH. DECKER. APPARATUS FOR MAKING BARREL BODIES FROM PHLP.

APPLICATION FILED PEB. 5, 1907. xmmvgnnlrn. 1, 1909.

Patented Jul 20} 1909.

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ummmmlmllmy a W. H. DECKER. APPARATUS FOR MAKING BARREL BODIES FROMPULP.

APPLICATION FILED vIEIB. 5, 1907. RENEWED APR. 1, 1909.

Patented July 20, 1909.

- 4SHBETBBHEBT 2.

W. H. DECKER. Y APPARATUS FOR MAKING BARREL BODIES FROM PULP.APPLICATION PILED FEB. 5 1907.

RENEWED APR. 1, 1909.

Patented July 20, 1909.

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$5 A Strum W. H. DECKER.

APPARATUS FOR MAKING BARREL BODIES FRQM PULP. APPLIGATION FILED rmsl 5,1907. zwmzwgn APR. 1, 1909.

- Patented July 20, 1909.

4 SHEETS-FREE! 4.

o o o o 0 0 o 0 o o 0 o o o o o 00 0 00 o 00 0 o 0 0Q 00 O 0000 0 00 Q oo o F Q/Q i'tI'ICJQCJ 35r a rozn cq bite/QM pulp. Hereto UNITED ST TESFAENT OFFICE.

WILLIAM H. DECKER, OF SYRACUSE, NEVV YORK, ASSIGNOR ,TO'THE SOLVAYPROCESS COMPANY, OF SYRAOUSE,' N YORK, A

CORPORATION OF NEW YORK.

APPARATUS FOR MAKING BARREL-BODIES FROM PULP.

Specification of Letters Patent.

Patented Jul 2c, 1909.

Application filed February 5, 1907, Serial No. 355,844.- Renewed. April1, 1909. Serial No. 487,339.

To all whom it may concern:

l3e it known that I, WILLIAM H. DECKER, a citizen of the United States,residing in the city of Syracuse, county. of Onondaga, and State of NewYork, have invented a new and Improved Apparatus for MakingBarrel-Bodies from Pulp, of which the following is a specification. I

lVI inventlon relates particularly to the making of bil ed barrel bodiesfrom'palper %ore cylindrical barrel bodies have been made from such pulby winding the same upon a cylindrical mandrel; Such barrels, however,are inconvenient to handle, on account of their shape, and for thisreason are not used except in very small sizes. Bilged barrel bodieshave also been made from pulp by compressing the pulp in a mold of thedesired shape. Barrel bodies niade'in this way are, however, weak onaccount of the method of manufacture,'and for this reason areundesirable, ascontainers of heavy contents.

The desirability of a barrel bodyformed by winding asheet of pulpdirectly upon a bllged mandrel has, long been recognized,

since such a body, while having the advantages'due to the bilged shape,would be strong byreason'of the substantially unifOIITldiSpOSltlOn ofthe ul-pfibers throughout the rhass, and wouldlhave the lightness andcheapness incident to the material com posing it. Since a bilged mandrelhas its greatestcircumference at its center, it is evident that, as sucha mandrel revolves, points on such central circumference .Wlll. move.more rapidly than points at the ends or between the ends and the center,and that:

a sheet of material continuously wound thereon will be longest at thecenter. Hence, in winding pulp upon a bilged mandrehit would benecessary to supply material thereto in such shape as to provide for theformation of a continuous sheet longer in the-middle than on the sides,and to supply it more rapidly at the center than at the ends of themandrel. Prior to my invention no means had been discovered ofsuccessfully accomplishing this, but in' all attempts to produce abarrel body by winding the same upon a .bilged mandrel, the sheet-ofpulp has been so strained and" disrupted by improper delivery to themandrel, as to result in a weak and imperfect construction.

The object of my improvements is to overcome thesedifiiculties, andprovide a practicable method 'of delivering to and winding upon a bilgedmandrel a continuous, unbroken sheet of pulp of uniform strengththroughout, so as to build up a barrelbody thereof. To this end I giveto the sheet of pulp at the outset the same form and proportions. itwill have when deposited upon the mandrel, by drawing it up from the vatupon a forming cylinder or roll of substantially the same shape and sizeas the mandrel. The wet, weak sheet of pulp cannot,. however, bedirectly transferred from the.

closely approaches the surface of the forming roll, and upon which thesheet of pulp is carried to the -mandrel at such a rate of travel inevery part thereof as such part will have after being deposited upon themandrel. The'preferred form for such device which I have illustrated anddescribed herein is a transfer roll having, as a whole, a concavesurface, and made up of a series of independently rotatable disks orsections which primarily lie against and are revolved by friction withthe surface of the mandrel. Hence each of such disks has the same meansurface rate of speed as that part of the surface of the mandrel withwhich it is in 0011- I tact, and the sheet of pulp, while thereon,movesat substantially the same speed in every part that it does afterbeing delivered to the mandrel. The sheet of pulp continues to be woundupon the mandrel until a deposit of the required thickness is formed,when the barrel body is removed from the mandrel, or an empty mandrel issubstituted, and the operation is repeated, In this manner I am able toform bar-rel bodies of successive layers of pulp which are undistorted,or, in other words, have the same shape and position whenlaid uponthemandrel as when lifted from the mass of pulp (from which they are formedand which have a uniformly parallel disposition to one another, aformation which adds largely to the strength of the .structure. Eachlayer of .pulp has' also the same thickness and the same degree ofsolidity throughout, thus giving the barrel body a uniform load carryingand strain resisting capacity in all parts. The invention will be bestunderstood by reference to the accompanying drawings, in which the samecharacters of reference indicate coirespondiil'g parts throughout.

Figure 1 of the drawings shows an end view of the apparatusyand Fig. 2 aplan View. Fig. 3 is a rear elevation, showing the concave transfer rollpartiallybroken away, stepping down from the sheet of pulp ontheexterior to section of shafting on line 3-3, Fig. 1. Fig. 4 shows avertical section of the forming and transfer cylinders. F ig. 5 shows asection on line 55 of Fig. &; and Fig. '6 a section online 66, Fig. 4;.Fig. 7 shows a longitudinal section of a portion of the concave transferroll on the line 7-7, Fig. 8; and Fig. 8 a'ti'ansverse section. of thesame on the line 8-8,' Fig. 7 Fig. 9 is a side view of one -e-pf thedisks formin with wire netting.

Referring to the drawings, A, indicates the pul tank, in Which revolvesthe forming roll, B, the extended ends of which rest in bearings b b,and which is rotated by means of the gears, b 5 The forming roll, B, isa metal shell thickly pierced with small perforations, and is covered onthe outside with Wire netting of small mesh, a portion of which is shownin Fig. 2. The operative portion of the roll, B, within the tank, A, isof the same size and shape as the bilged mandrel, 1V1.

Within the forming roll, B, is a suction box, 0, which, by means ofstraps, c, 0, c, is suspended from and secured to a shaft, D. The shaft,D, is provided with a worm and gear, cl, d, by means of w ich it may berotated to the end of adjusting the position of the suction box, 0,within the roll, B. From the suction box, C, a pipe, E, leads to an airexhaust apparatus of any usual or suitable form (not shown in thedrawings).

F, indicates a pipe through which water may be withdrawn from-theinterior of the forming roll, B.

G,'is a pipe. leading from a source of air pressure (not shown), andprovidedwith a row of tubes, g, g, whereby an air blast may be directedagainst the inner surface of the roll, B.

H, is the concave surfaced transfer roll 10- cated closely adjacent to,but out of contact with, the forming roll, B. The transfer roll, H, ismade up of a series of independent hollow disks or sections, 77., 11,72. &c. which are rotatably mounted on a fixed shaft, 1. Each of thedisks, h, is made up of two-side walls,

7", '5, connected, adjacent to the shaft, I, by a hub, j. The spacebetween the side walls, 71, i, and the hub, 7', is divided into a seriesof cells by partitions, i 71 &c., which extend from the hub, j,outwardly to the periphery of the L, l, through the wall of the shaft,1, into.

each of the parts, k, k, are arranged to register with the openings, jof the disks, h, h &c., as these rotate. One part, is, of the shaft, I,is connected with an air exhaust (not shown), and the other part, is, isconnected with a source of air pressure (not shown).

Each. of the sections forming the transfer roll, H, is so shaped thatthe transfer roll presents a concave exterior surface, which is theconverse of the bilged or convex exterior 4 surfaces of the formingroll, B, and the the transfer roll, shown partlally 'covere I mandrel,M.

M, indicates a bilge shaped collapsible mandrel-of any usual or suitableconstruction, supported by the shaft, N, which rests in open hearings orcrotches, m, m, and is adapted to be rotated by the gear wheels, n, n.The mandrel, M, lies in contact with the transfer roll, H, the sectionsof which roll, B, is revolved, and a film or web of pulp is brought upon the surface thereof from the mass in the tank, *A. Air is withdrawnfrom the suction box, C, and by means of the vacuum or partial vacuumthus formed, the film of pulp, as it passes in front of the suction box,0, is firmly held on the'surface of the forming roll, B, and a port-ionof its watery content is extracted so that it is partially dried. As thefilm of pulp reaches the line of the tubes, 9, g, a blast of air throughthe pipe, G, and the tubes, 9, g, detaches it from the forming roll, B,and carries it over to the transfer roll, H. The detachment of-the filmof pulp from the forming roll, B, and its transfer to and retention uponthe transfer roll, H, is facilitated by the exhaustion of air from thepart is, of the hollow shaft,'I, actin upon the film of pulp through theports, 7, in the shaft, I, and the ports, 7' in the disks, 71 h, 71.&c., which form the transfer roll, H, as these latter register with theports, Z. As the film of pulp approaches the point at which the transferroll, H, is in contact with the mandrel, M, it is loosened from thesurface of the transfer roll, and its transfer to the mandrel isfacilitated by a rnoderate air pressure a plied to :the film.'throughthe part, 7c",o the hollow shaft, I, the ports, Z,

and the ports, 7' as these register with the ports, Z. When the filmreaches the line of contact between the transfer roll, H, and themandrel, M, it leaves the transfer roll,

and follows the'mandrel, and is'wound thereon until a barrel-body of therequired thickness is formed. u

It will be evident that since each of the independently rotatable disksor sections forming the transfer 'roll, H, is revolved by friction withthat portion of the -mandrel, M, in contact therewith, it .will travelatthe same means surface rate of speed as such portion of the mandrel, thesmallest or 1 central disk, which is in contact with the Id 'reL and thestraining and tearing of the sheet of pulp which Would'result from variations in-the rate oftravel as the sheet is transferred from fone surfaceto another is avoided. Any slip that may. be due to the difference insize of the two sides of the individual'sections of the transfer roll,H, will 7 'be so slight that it may be disregarded- The shaft, N, of themandrel, M, is. free to rise in the open bearings, m, m, and thus we isafi'orded betweeh the mandrel and t e transfer roll, II, for'the sheetof pulp uponthe mandrel as it increases in thickness by the depositionOfsuccessive layers. The sheet of pul is subjected .to the entire weightof the man rel, and is thus compressed as it is rolled upon themandrehforming a rigid,

solid barrel body; After the barrel body has attained the requiredthickness, the mandrel, M, is removed by lifting the shaft N, from thebearings, m, m, and the barrel body is removed from the mandrel in theusual manner and set aside to dry.

WVhat I claim as new and desire to secure by Letters Patent is;

1. In an apparatus for forming bilged barrel bodies of paper pulp, thecombination of a bilged forming roll for withdrawing a web of pulp fromthe vat, a bilged mandrel and a concave surfaced transfer roll lyinglbetween said forming roll and said mandrel, and in' contact with thelatter, and composed of hollow, independently rotatable sections mountedupon a hollow fixed shaft, and means of communication between theinterior of said' shaft and the interior of each of said sections,substantially as and for the purposes set forth.

2. In an apparatus for forming bilged 3. In an apfparatus for formingbilgedbarrel bodies 0 aper pulp, the combination of a bilged formingroll or withdrawing a web of pulp from the vat, a bilged.mandrel and aconcave surfaced transfer roll lying Y between said forming roll andsaid mandrel and in contact with the latter, substantially as andfor'the purposes set forth.

4. In an ap aratus for forming bilged barrel bodies 0 paper pul thecombination of a bilged forming roll or withdrawing a web ofpulp fromthe vat, a bilged mandrel and means for transferring the web of pulpfrom the forming roll to, the mandrel, substantially as and for thepurposes set forth.

5. In an a' *aratus for forming .loilged barrel bodies of aper pulp thecombination of a perforated arrel shaped' forming roll for withdrawing aweb of pulp from a vat, a. shaft through said forming roll, a suctionbox secured to said shaft, means for withdrawin air fromsaid suctionbox, and means orrotating said shaft to the 'end of adjusting theposition of, the suction box Within the forming roll, substantially asand.

for the purposes set forth.

6. InEan ap aratus for forming bilged barrel bodies with a perforatedbarre shaped forming rollfor withdrawing a webof pulp from a vat, of apipe connected with a source of air pressure and extendinglongitudinally through said forming rol and a series of tubes extendingfrom said pipe to points near the interior surface of said forming roll,substantially as and for the purposes set forth.'- A r 1 1 7. In anapparatus for forming bilged barrel bodies of aper pulp the combinationof a perforated arrel shaped forming roll for withdrawing a web of pulpfrom a vat,

a concaved surfaced transfer roll adapted to receive such web, and meansfor directing an air blast against'the interior of said forming rolltothe end of transferring the web of pulp from the forming roll to thetransfer roll, substantially as set forth.

a longitudinal partition, and having a series of openings through thewall thereof on each side of said partition, and a series of-:

8. In an apparatus for forming bilged hollow, independently rotatabledisks mounted upon said shaft, and having openings in the hubs thereofarranged *to register with the openings in the shaft as the disks re-100 o paper-pul the combination Correlations Letters Patent No. 928,24].

volve, substantially as and for the purposes set forth.

9. In an apparatus for forming bilged barrel bodies of paper pulp, thecombination of a fiXEClshaft, a series of hollow disks -independentlyrotatable on said shaft,, and forming together a concave surfacedtransfer roll, and means for intermittently withdrawing air from andadmitting an air blast to the hollow interiors of saiddisks as theyrevolve upon said shaft, substantially as and for the purposes setforth. I

10. In' an apparatus for forming bilged barrel bodies of paper pulp the.combination of a bilged forming roll, a bilged mandrel, means fortransferring a bilge-shaped Web of pulp formed upon the forming roll tothe mandrel, and means for causing such [sEAL] In testimony whereoflhave hereunto subscribed my name, this 1st day of February A. D., 1907.WILLIAM H. DECKER. Witnesses: 7

E1). F. HUGHEs, JAMES PLANT.

It 'is hereby certified that in Letters Patent No. 928,247, granted July20,1909, upon the application of William N. Decker, of Syracuse, NewYork, for an improvement in Apparatus for Making Barrel-Bodies fromPulp, errors appear in the printed specification requiring correction,as follows: In line 57 page 1, the word method 1: should read "law, andpage 3, lines 63454, 73, 8 1, 88, 98-99, and 109, and page 4, lines 1and II -1 2, the'words and for the purposes should be stricken out; andthat the said Letters Patent should be read .with these correctionstherein that the same may conform to the record of the case in thePatent Office. I

, Signed aud sealedthis day of August, A. 1)., 1909.

F. A. TENNANT,

Acting Commissioner of Patents. 1

Correlations Letters Patent No. 928,24].

volve, substantially as and for the purposes set forth.

9. In an apparatus for forming bilged barrel bodies of paper pulp, thecombination of a fiXEClshaft, a series of hollow disks -independentlyrotatable on said shaft,, and forming together a concave surfacedtransfer roll, and means for intermittently withdrawing air from andadmitting an air blast to the hollow interiors of saiddisks as theyrevolve upon said shaft, substantially as and for the purposes setforth. I

10. In' an apparatus for forming bilged barrel bodies of paper pulp the.combination of a bilged forming roll, a bilged mandrel, means fortransferring a bilge-shaped Web of pulp formed upon the forming roll tothe mandrel, and means for causing such [sEAL] In testimony whereoflhave hereunto subscribed my name, this 1st day of February A. D., 1907.WILLIAM H. DECKER. Witnesses: 7

E1). F. HUGHEs, JAMES PLANT.

It 'is hereby certified that in Letters Patent No. 928,247, granted July20,1909, upon the application of William N. Decker, of Syracuse, NewYork, for an improvement in Apparatus for Making Barrel-Bodies fromPulp, errors appear in the printed specification requiring correction,as follows: In line 57 page 1, the word method 1: should read "law, andpage 3, lines 63454, 73, 8 1, 88, 98-99, and 109, and page 4, lines 1and II -1 2, the'words and for the purposes should be stricken out; andthat the said Letters Patent should be read .with these correctionstherein that the same may conform to the record of the case in thePatent Office. I

, Signed aud sealedthis day of August, A. 1)., 1909.

F. A. TENNANT,

Acting Commissioner of Patents. 1

ions in Letters Patent No. 928,247.

Correct It is hereby certified that in Letters Patent No. 928,247,granted July 20, 1909, upon the application of William N. Decker, ofSyracuse, New York, for an improveinent in Apparatus for MakingBarrel-Bodies from Pulp, errors appear in the printed specificationrequiring correction, as follows: In line 57, page 1, the word methodshould read means, and page 3, lines 63-64, 73, 81, 88, 9899, and 109,and page 4, lines 1 and 11-12, the words and for the purposes should bes ricken out; and that the said Letters Patent should be read with thesecorrections therein that the same may conform to the record of the casein the Patent Oflice.

Signed and sealed this 24th day of August, A. D., 1909.

[SEAL] F. A. TENNANT,

Acting Commissioner of Patents.

